Railway signal-fusee.



F. DUTGHER'. RAILWAY SIGNAL PUSEE. APPLICATION FILED MAY 1 1909.

Patented Aug. 3, 1909.

unirsi) siaiiis kann@ FRANK Duro-HER, or VERSAILLES, PnNNsYLVANiA.

RAILWAY SIGNAL-Fusion.

Specification ot Letters atent.

Patented Aug. 8, 1909.

Application filed May 1, .1909.- Seral No1 493,330.

y accompanying drawing.

This invention relates to iinprovenients in railway signal usees, and pertains to an iniproved inanner of attaching the spiked plugl or closure for the lowei` end of the fnsee case. l `Signal fnsees contain certain chemicals for producing acolored light Vfor a predetermined period of time, and these fnsees are provided with spiked plugs or closures for their lower ends,`and .the spike is caused to enter either a vrailroad tie, or the road bed 'for supporting the fusee in an upright position while burning. It is well known to those skilled in this .art.that the chemical composition contains ay large percentage of sulfur, `and0 it is alsov well known. that the spiked plugs or closures are practically -nniversally secured in the ends of the useecase by glue which enters circumferential .grooves in the plugl and adheres to the inner side of the case.V

The glue contains a certain ainouiit of acid, and it it happens to come in contact with the chemical filling otl the.

case when dainp. (asit has been known to' do) it :Iets upon the sulfur, causing the foi'- in'atioii of sulfuric. acid gas, and hy reason of this spontaneous combustion, occurs, whic.h has in Sonie instances caused serious and destructive tires iii factories. and also when packed in dozens in hoxes and in transit to the consignee. .y

The ob]ect ot the present invention is to provide means for firmly and cheaply `at lacliing` the spiked plugs in the end of the farsene-case without the use ot glue or other ceinent. and to thereby avoid the possibility ot tire from the cause herein mentioned, and at. the saine tinie make a better fastening; for the plug.

VReferring now to the drawings: Figure 1 is a detached sectional perspective view of the plug end eta insee. showing the pino'. and the plug-attaching nieinlier detached. Fig. il is'a longitiulinal sectional view of the plug end of a .taserwith a single grooved plug attached thereto by the present improvement. Fig. is a` detached perspective .circuinierential groove 17.

view of one foi-in of plug. Fig. -t is a longitudinal sectional' view of the plug end ofy a insee, showing a plug and the iinproved plug attaching nieniher in position ready tohe grooved. or crimped for holding the parts together. Fig. 5 is a detached perspective view oi" one of the furnis ot plug attaching in eniher.

In putting the present invention in practice. the usual paper insee-case or tube l is used, and this case is filled with the usual light producing chemical Q.

in Figs. l, 3 and et, the plug 3 is of a forni which has a donie or conical shaped outer end. it, and is provided with two ciicuni* ferential grooves 5. However, the particu lar shape ot' the plu'g is not` material, and it will loe apparent troni an understanding of the invention; that its shape niay be varied in inany ways without departing` from the scope of the invention. variation of -the shape of the plug 13a is shown in Fig. 2. wherein the outer end G of the plug .is made flat. and is provided with one This plug inay be inade of any suitable inateiial. The present practice is to niake i'tl either of wood or -asl iron. Then the plug,- is of wood the inner end oi2 the spike 8 is driven into an opening in the plug, whereas when the plug ot cast iron.l the in ner end ofthe spike is cast into the plug. So 'tar l have described the usual coiistructioii.

The 'present improvement comprises an attaching nieinher 9 for the two groved deine-shaped plug, and an attaching in eniher 9 for the .flat ended one groove plug. nhis attaching ineinlier is approximately cupA shaped, and has its bottoni or end-wall 10 provided with an olieuing l1. througliwhieh the spike 8 passes. The end-wall l0 engages -the outer end of the plug, and the side-wall nienibei is: circun'iferentially grooved or depressed, or grooved as shown at a, which forces the adjacent wall ott the tube into the 0'rooveor grooves ot the plug. and tirinly liolds the parts together.

The attaching iuenilier is constructed ol `plialole thin sheet metal, .se that it is easily As shown the tnhe projects beyond the cheniical fillingA a snilicicnt distance to receive the spiked pluoi For instance, oney vbracing the end of the tube and clamping depressed or grooved by rollers, and remains in this depressed or grooved position, clamping the parts firmly together:

Having thus described my invention, what I claim and desire to secure by Letters Pat ent is:

`1. rluhe combination With the end of the tubular case of a fusee, of a spiked plug placed in the end of the tube, of anattaching member having a sidewall and an endWall, the latter engaging the outer end of the plug and provided with an opening through Which'the spike passes, the side Wall emitsel, the tubeand the plug together.

2. The combination with the end of the tubular case of a fusee, of a plug 4placed in the end ofthe tube, the plug having a recess in its l outer surface, of an attaching member having a Wall embracing the end of the tube,

y the Wall of the attaching member forced i inward at a point opposite the vsaid plug recess, thereby forcing the lWall of the tube into theplu recess, and attaching the plug, tube and Wa l of sai-d member together.

3. Thev combination with the end of the.

member forced inward opposite Jthe groove in the plug gether.

In testimony whereof I affix Inysignature in presence of two Witnesses.

FRANK DUTCHER.

and attaching the said parts to- Witnesses H. P. imola, S. I. PRICE. 

